Asphalt flue gas recovery device
By designing the asphalt flue gas recovery device, the vacuum pump and solenoid valve system absorb and store the flue gas generated during the asphalt stirring process, solving the threat of flue gas to the environment and health, and achieving effective flue gas recovery and pollution control.
Patent Information
- Application Number
- CN202421621833.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-10
AI Technical Summary
The flue gas released by asphalt during the stirring process is rich in harmful gases, which seriously threatens the environment and human health.
A bituminous flue gas recovery device is designed, and the smoke in the mixing pot is sucked in and stored through the negative pressure of the gas storage bag, thereby realizing the flue gas recovery.
It effectively reduces the emission of flue gas to the external environment, controls the spread of pollutants, and protects the environment and human health.
Smart Images
Figure CN222816724U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of asphalt fume recovery, in particular to an asphalt fume recovery device. Background Art
[0002] Asphalt is widely used as a key material in engineering fields such as road construction, airport runway paving and building waterproofing. However, during the mixing process of asphalt, especially under high temperature conditions, a large amount of smoke will be released. These smoke are rich in volatile organic compounds (VOCs), sulfides, nitrogen oxides, particulate matter (such as PM2.5 and PM10) and other harmful gases, posing a serious threat to the environment and human health.
[0003] VOCs in asphalt fume are important precursors of photochemical smog. They can participate in complex chemical reactions in the atmosphere to generate ozone and other secondary pollutants, exacerbating urban air pollution. At the same time, particulate matter can remain suspended in the air for a long time, reducing air quality and affecting atmospheric visibility. They may enter the human body through the respiratory tract and cause damage to the respiratory system. Harmful substances in asphalt fume can have acute and chronic effects on the human body. Workers who are exposed to asphalt fume for a long time are susceptible to respiratory diseases, skin diseases and even cancer. In addition, these harmful substances may accumulate through the food chain and have a long-term negative impact on the ecological environment. Therefore, we have made improvements to this and proposed an asphalt fume recovery device. Summary of the invention
[0004] The utility model aims to solve the problem that a large amount of smoke is released during the mixing process of asphalt, which poses a serious threat to the environment and human health.
[0005] In order to achieve the above-mentioned purpose of the invention, the utility model provides an asphalt fume recovery device to improve the above-mentioned problem.
[0006] The specific application is as follows:
[0007] An asphalt fume recovery device comprises a vacuum pump, wherein the air inlet of the vacuum pump is connected to a three-way solenoid valve through a pipeline, the other two ends of the three-way solenoid valve are respectively connected to a three-way pipe and a connecting pipe, the other two ends of the three-way pipe are both connected to a second solenoid valve, and the two second solenoid valves are both connected to a threaded joint; the threaded joint is connected to a valve, and the valve is connected to an air storage bag.
[0008] As a preferred technical solution of the present application, a base is installed at the bottom of the vacuum pump, and a protective box is installed on the top of the base.
[0009] As a preferred technical solution of the present application, a plurality of heat dissipation ports are provided on the back of the protective box, and the positions of the heat dissipation ports correspond to the positions of the air outlets of the vacuum pump.
[0010] As a preferred technical solution of the present application, the ends of the threaded joint and the connecting pipe both pass through the front side of the protective box.
[0011] As a preferred technical solution of the present application, a folding handle is installed on the top of the protective box, and the folding handle is used to assist the movement of the whole.
[0012] As a preferred technical solution of the present application, the end of the connecting pipe away from the three-way solenoid valve is threadedly connected to a threaded sleeve, the threaded sleeve is connected to a delivery pipe, and a hard pipe is inserted into the inner wall of the delivery pipe, and a sealing ring is fixed on the outer surface of the hard pipe.
[0013] As a preferred technical solution of the present application, an insertion port is provided on the front of the protection box, a hand-tightening bolt is threadedly connected to the top of the protection box, and the bottom end of the hand-tightening bolt is inserted into the insertion port.
[0014] As a preferred technical solution of the present application, the front of the protective box is fixed to a support frame, and a support plate is provided on the front of the protective box, an insert plate is provided on one side of the support plate, and the outer surface of the insert plate is inserted between the support frame and the protective box.
[0015] As a preferred technical solution of the present application, a notch is further provided on the support plate, and the size of the notch matches the size of the support frame.
[0016] As a preferred technical solution of the present application, the thickness of the plug plate is less than or equal to the width of the insertion port.
[0017] Compared with the prior art, the utility model has the following beneficial effects:
[0018] In the scheme of this application:
[0019] In order to solve the problem in the prior art that a large amount of smoke is released during the mixing process of asphalt, posing a serious threat to the environment and human health, the present application uses a vacuum pump. After the vacuum pump is started, it is controlled by a three-way solenoid valve to first evacuate the air storage bag, and then the three-way pipe and the connecting pipe are switched to a connected state. The negative pressure in the air storage bag is used to suck in and store the smoke in the mixing pot, thereby realizing smoke recovery. By collecting the smoke directly at the mixing pot, the emission of smoke to the external environment is effectively reduced, and the diffusion of pollutants is controlled from the source. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 A schematic diagram of the structure of the asphalt fume recovery device provided for this application;
[0021] Figure 2 A schematic diagram of the structure of a vacuum pump for an asphalt fume recovery device provided in this application;
[0022] Figure 3 A schematic diagram of the structure of the air storage bag of the asphalt fume recovery device provided in this application;
[0023] Figure 4 A schematic diagram of the structure of the sealing ring of the asphalt fume recovery device provided in this application;
[0024] Figure 5 A schematic diagram of the structure of the support plate of the asphalt fume recovery device provided in this application;
[0025] Figure 6 A schematic diagram of the structure of the support plate of the asphalt fume recovery device provided in this application protecting the threaded joint and the connecting pipe;
[0026] Figure 7 A schematic structural diagram of the notch of the asphalt fume recovery device provided in this application.
[0027] Indicated in the figure:
[0028] 1. Vacuum pump; 2. Three-way solenoid valve; 201. Three-way pipe; 202. Second solenoid valve; 203. Threaded joint; 204. Connecting pipe; 3. Delivery pipe; 301. Sealing ring; 302. Threaded sleeve; 303. Hard pipe; 4. Air storage bag; 401. Valve; 5. Protection box; 501. Base; 6. Insertion port; 7. Hand-tightening bolts; 8. Support frame; 9. Support plate; 10. Notch; 11. Insert plate. DETAILED DESCRIPTION
[0029] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.
[0030] As described in the background technology, during the mixing process of asphalt, especially under high temperature conditions, a large amount of smoke will be released. The smoke is rich in volatile organic compounds (VOCs), sulfides, nitrogen oxides, particulate matter such as PM2.5 and PM10, and other harmful gases, posing a serious threat to the environment and human health.
[0031] In order to solve this technical problem, the utility model provides an asphalt fume recovery device, which is used for recovering asphalt fume.
[0032] Specifically, please refer to Figure 1-Figure 3 , the asphalt fume recovery device specifically includes:
[0033] A vacuum pump 1, the air inlet of the vacuum pump 1 is connected to a three-way solenoid valve 2 through a pipeline, the other two ends of the three-way solenoid valve 2 are respectively connected to a three-way pipe 201 and a connecting pipe 204, the other two ends of the three-way pipe 201 are connected to a second solenoid valve 202, and the two second solenoid valves 202 are both connected to a threaded joint 203; the threaded joint 203 is connected to a valve 401, and the valve 401 is connected to an air storage bag 4.
[0034] The utility model provides an asphalt fume recovery device. The application uses a vacuum pump 1. After the vacuum pump 1 is started, it is controlled by a three-way solenoid valve 2 to first evacuate the air storage bag 4, and then switch to a state where the three-way pipe 201 is connected to the connecting pipe 204. The negative pressure in the air storage bag 4 is used to suck in and store the fume in the mixing pot, thereby realizing fume recovery. By directly collecting the fume at the mixing pot, the emission of fume to the external environment is effectively reduced, and the diffusion of pollutants is controlled from the source.
[0035] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.
[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.
[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0038] Example 1, please refer to Figure 1-Figure 3 , an asphalt fume recovery device, comprising a vacuum pump 1, an air inlet of the vacuum pump 1 is connected to a three-way solenoid valve 2 through a pipeline, the other two ends of the three-way solenoid valve 2 are respectively connected to a three-way pipe 201 and a connecting pipe 204, the other two ends of the three-way pipe 201 are connected to a second solenoid valve 202, and the two second solenoid valves 202 are connected to a threaded joint 203; the threaded joint 203 is connected to a valve 401, and the valve 401 is connected to an air storage bag 4. The present application uses a vacuum pump 1. After the vacuum pump 1 is started, the three-way solenoid valve 2 is controlled The air storage bag 4 is first vacuumed, and then switched to a state where the three-way pipe 201 is connected to the connecting pipe 204, and the smoke in the mixing pot is sucked in and stored by the negative pressure in the air storage bag 4, so as to realize the recovery of the smoke. By directly collecting the smoke at the mixing pot, the emission of smoke to the external environment is effectively reduced, and the diffusion of pollutants is controlled from the source. The two threaded joints 203 can be connected to two air storage bags 4. When one of the air storage bags 4 is recovering smoke, the staff can take out and put in the other air storage bag 4.
[0039] After the smoke is recovered in the gas storage bag 4, the smoke can be discharged by opening the valve 401, and then the smoke can be processed or analyzed accordingly.
[0040] Example 2, the asphalt fume recovery device provided in Example 1 is further optimized, specifically, as follows Figure 1-Figure 2 As shown, a base 501 is installed at the bottom of the vacuum pump 1, and a protection box 5 is installed on the top of the base 501. The protection box 5 and the base 501 cooperate with each other to protect the vacuum pump 1.
[0041] Furthermore, a plurality of heat dissipation ports are provided on the back of the protection box 5, and the positions of the heat dissipation ports correspond to the positions of the air outlets of the vacuum pump 1, so as to facilitate heat dissipation and exhaust through the heat dissipation ports when the vacuum pump 1 is working.
[0042] Further, such as Figure 1 As shown, the ends of the threaded joint 203 and the connecting pipe 204 both pass through the front side of the protection box 5, and the end of the connecting pipe 204 is provided with threads.
[0043] Further, such as Figure 1 As shown, a folding handle is installed on the top of the protective box 5, and the folding handle is used to assist the movement of the whole, thereby improving the portability of the present application.
[0044] Further, such as Figure 2 and Figure 4 As shown, one end of the connecting pipe 204 away from the three-way solenoid valve 2 is threadedly connected with a threaded sleeve 302, the threaded sleeve 302 is connected to the delivery pipe 3, and the inner wall of the delivery pipe 3 is inserted with a hard pipe 303, and the outer surface of the hard pipe 303 is fixedly sleeved with a sealing ring 301. When in use, the sealing ring 301 is placed between the pot body and the pot cover of the asphalt mixing pot, so that the smoke generated during the mixing process can be transported by the hard pipe 303, the delivery pipe 3 and the threaded sleeve 302.
[0045] Example 3, the asphalt fume recovery device provided in Example 1 or 2 is further optimized, specifically, as follows Figure 5 and Figure 7 As shown, an insertion port 6 is provided on the front of the protection box 5 , a hand-tightening bolt 7 is threadedly connected to the top of the protection box 5 , and the bottom end of the hand-tightening bolt 7 is inserted into the insertion port 6 .
[0046] Further, such as Figure 5 and Figure 7 As shown, the front of the protective box 5 is fixed on a support frame 8, and a support plate 9 is provided on the front of the protective box 5. An insert plate 11 is provided on one side of the support plate 9. The outer surface of the insert plate 11 is inserted between the support frame 8 and the protective box 5. The support plate 9 can support the air storage bag 4.
[0047] Furthermore, a notch 10 is formed on the support plate 9 , and the size of the notch 10 matches the size of the support frame 8 , so that the notch 10 can be plugged into the support frame 8 .
[0048] Furthermore, the thickness of the plug board 11 is less than or equal to the width of the insertion port 6 .
[0049] The use process of the asphalt fume recovery device provided by the utility model is as follows:
[0050] The sealing ring 301 is placed between the pot body and the pot cover of the asphalt mixing pot, and the sealing ring 301 is clamped by the pot cover and the pot body. First, a threaded joint 203 is connected to the valve 401. At this time, the second solenoid valve 202 connected to the threaded joint 203 is turned on, and the other second solenoid valve 202 is closed. The three-way solenoid valve 2 controls the vacuum pump 1 to be connected to the threaded joint 203, and the air storage bag 4 is evacuated by the vacuum pump 1. After the vacuuming is completed, the three-way solenoid valve 2 controls the connection pipe 204 to be connected to the threaded joint 203, and the negative pressure in the air storage bag 4 is discharged. The smoke generated in the mixing pot is sucked into the gas storage bag 4 through the threaded joint 203, the three-way pipe 201, the connecting pipe 204, the conveying pipe 3 and the hard pipe 303 to recover the smoke. During this period, the staff can disassemble and assemble another threaded joint 203 and the valve 401. When the gas storage bag 4 that is being sucked out of the smoke is full, the corresponding valve 401 and the second solenoid valve 202 are closed and the valve 401 is separated from the threaded joint 203. Then, the three-way solenoid valve 2 switches the circuit so that the other gas storage bag 4 starts to be vacuumed and then recovers the smoke.
[0051] The air storage bag 4 can be supported by the support plate 9. After use, the support plate 9 is pulled upward to separate the plug plate 11 from the support frame 8, and then the plug plate 11 is inserted into the insertion port 6 and the hand screw 7 is tightened. Figure 6 As shown, at this time, the support plate 9 can protect the threaded joint 203 and the portion of the connecting pipe 204 exposed outside the protection box 5 .
[0052] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0053] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.
Claims
1. An asphalt fume recovery device, characterized in that: The invention comprises a vacuum pump (1), wherein an air inlet of the vacuum pump (1) is connected to a three-way solenoid valve (2) via a pipeline, the other two ends of the three-way solenoid valve (2) are respectively connected to a three-way pipe (201) and a connecting pipe (204), the other two ends of the three-way pipe (201) are both connected to a second solenoid valve (202), and the two second solenoid valves (202) are both connected to a threaded joint (203); the threaded joint (203) is connected to a valve (401), and the valve (401) is connected to an air storage bag (4).
2. The asphalt fume recovery device according to claim 1, characterized in that: A base (501) is installed at the bottom of the vacuum pump (1), and a protective box (5) is installed on the top of the base (501).
3. The asphalt fume recovery device according to claim 2, characterized in that: The back of the protection box (5) is provided with a plurality of heat dissipation openings, and the positions of the heat dissipation openings correspond to the positions of the air outlets of the vacuum pump (1).
4. The asphalt fume recovery device according to claim 3, characterized in that: The ends of the threaded joint (203) and the connecting pipe (204) are both passed through the front side of the protection box (5).
5. The asphalt fume recovery device according to claim 4, characterized in that: A folding handle is installed on the top of the protection box (5), and the folding handle is used to assist the movement of the whole.
6. The asphalt fume recovery device according to claim 5, characterized in that: One end of the connecting pipe (204) away from the three-way solenoid valve (2) is threadedly connected to a threaded sleeve (302), the threaded sleeve (302) is connected to a delivery pipe (3), and a hard pipe (303) is inserted into the inner wall of the delivery pipe (3), and a sealing ring (301) is fixedly sleeved on the outer surface of the hard pipe (303).
7. The asphalt fume recovery device according to claim 6, characterized in that: An insertion port (6) is provided on the front of the protection box (5), and a hand-tightening bolt (7) is threadedly connected to the top of the protection box (5), and the bottom end of the hand-tightening bolt (7) is inserted into the insertion port (6).
8. The asphalt fume recovery device according to claim 7, characterized in that: The front of the protection box (5) is fixed to a support frame (8), and a support plate (9) is provided on the front of the protection box (5), and an insert plate (11) is provided on one side of the support plate (9), and the outer surface of the insert plate (11) is inserted between the support frame (8) and the protection box (5).
9. The asphalt fume recovery device according to claim 8, characterized in that: The support plate (9) is also provided with a notch (10), and the size of the notch (10) is adapted to the size of the support frame (8).
10. The asphalt fume recovery device according to claim 9, characterized in that: The thickness of the inserting plate (11) is less than or equal to the width of the inserting opening (6).